Sifter.



W. NICHTHAUSER, DECD.

M. S. NICHTHAUSER. EXECUTRIX.

SIFTER.

APPLICATION FILED MAY 24. I912.

1,137,886. Patented May 4, 1915.

M 951? m WM @W IHE NORRIS PETERS CO4. Pnui'O-LITHGL. WASHINGTON. D. C.

WILLIAM NICI-ITI-IAUSER, OF NEW YORK, N. Y.; MAUI) S. NICI'ITI-IAUSER, EXECUTRIX V OF SAID WILLIAM NICI-ITI-IAUSER, DECEASED, ASSIGNOR T NICI-ITHAUSER &. LEVY,

A CORPORATION OF NEW YORK.

Specification of Letters Patent.

Patented May 4., 1915.

Application filed May 24, 1912. Serial No. 699,455.

To all whom it may concern .Be it known that I, WILLIAM NIGHT- HAUsER, a citizen of the United States, residing at borough of Manhattan, 1n the county of New York and State of New York, have invented certain new and use ful Improvements in Sifters, of which the following is a specification, reference being had therein to the accompanying drawings, forming part thereof.

My invention relates to sifters and particularly coal and ash sifters and has for its objects simplicity andeconomy of manufacture, strength and durability of construction, eiiiciency, reliability and neatness of operation. I

My invention also has for its objects to provide for the adjustment and adaptability of the sifter to fit material receiving receptacles of various sizes and to confine and retain the dust and ashes so as to insure a comparatively dust proof apparatus.

My invention also has for its object to provide for the unobstructed and uninterrupted movement of the material dumped into the feed chute into and through the sieve without any clogging of the material therein.

My invention also has for its object to provide a sieve of simple and durable construction and with strengthening members along its side and ends to impart the necessary rigidness.

My invention has other objects which will appear more fully hereinafter.

My invention includes a cylindrical sieve arranged to rotate on an inclined shaft and secured to said shaft by cross strips so positioned that no clogging up of the outlet for the feed chute or retardation of the material passing through the sieve will result therefrom. invention also includes means for joining together the edges of the sheet forming the cylindrical sieve of my invention, said means consisting of selvage strips provided with cooperating hook-like portions adapted to be held in looking engagement with one another and thereby making unnecessary the soldering together of the two separate parts. I

My invention also includes adjustable means whereby the sifter may be mounted on barrels, cans and like material receiving receptacles of difierent sizes, and so located or positioned thereon that the opening at the base of the casing will be at all times in cooperative relation with the open end of the material receiving receptacle.

My. invention includes other features and details of construction, which will appear more fully hereinafter.

I shall now describe my invention as illustrated in the accompanying drawings and shall thereafter point out my invention in claim.

Figure 1 is a side elevation in section of one embodiment of my invention. Fig. 2 is a bottom view of the same with the feed and outlet chutes removed. Fig. 3 is a side elevation of the revoluble sieve. Fig. 4 is an end .view of the same. Fig. 5 is an enlarged plan view of the joint connecting the edges of the sheet forming the sieve. Fig. 6 is an enlarged sectional end view of the same.

In the specific embodiment of my invention which I have illustrated in the accompanying drawings, a hollow cylindrical sieve is shown mounted upon a shaft 2 fitted in bearings 3 and 4 to rotate therein. This shaft is shown as somewhat inclined toward the rear of the apparatus so as to give a downward slope to the sieve and thereby facilitate the passage of the material along its length. An extended portion is provided at its forward end and bent to form a handle 5. j

The sieve is inclosed on the top and sides thereof within a casing 6, the upper portion of the casing being arched and inclined longitudinally to conform with the curved and inclined outline of the sieve 1. At the forward part of the casing 6 and riveted thereto is shown a feed chute 7 having sloping sides and bottom upon which the material is dumped and guided directly into the sieve 1. An extending guide plate 9 is riveted or otherwise secured to the inclined base 7 of the chute 7 and is adapted to lead the material directly into the adjacent, open end of the sieve 1.

In the specific embodiment of my invention herein illustrated, the sieve 1 consists of a sheet of wire woven to form a mesh of small squares or perforations through which the material is sifted. This sheet is rolled or otherwise shaped to form a hollow cylinder, the edges wlse forced together to hold firmly the parts held therein, making unnecessary the use of solderingtools and solder so common in work of this character. These strips when so locked and bound together: serve as a stiffening or strengthening band extending the length of the sieve. v

The sieve ;1 is shown as. further strengthened by strengthening hoops or rings at each end of the strips 10l1 and of the sieve 1. These hoops'12 and 13 are shown as made.

from folded V-shaped selvage strips in the I open portions of which the edges of, the sheet 1 are inserted and held.

Connections between the. perforated sheet 1 forming the sieve and the rotating shaft 2 are made at each end of the cylinder by flat strips 14 and 15 shown as extending from the hoops 10 and 11 respectively, and radially across the cylinder to the shaft 2. The forward strip, 14 is showir as secured at one endto the hoop 12 and as extending rearwardly and along the inner surface of the cylinder for 'a substantial distance and thence downwardly and across the open end of the cylinder to the shaft 2 to which it is held by'the bearing plate 16. That portion 14 of the strip 14,- extending radially and across the cylinder is bent or turned so that its wider faces are in planes parallel to the longitudinal'a-xis of the shaft 2 and with the bearing-plate 16 provides a long bearing in which the shaft is firmly held. 1 This construction permits the entrance of the guide plate 9 into theopen end of the cylinder 1 for a substantial distance and insures the proper feeding of the material therein during therotation of the sieve. The bending of the strip 14 with its wider faces in aline ment-with the shaft 2 offers theleast obstruction to the entrance and passage ofthe material through the sieve.

The rear strip 15 is shown as securedto the rear hoop 11 andextending radially and across therear opening of the cylinder 1 and to the shaft 2 to which it is firmly secured by a bearing plate 16. As in the case of the strip 14, itis bent or turned so that its wider faces are in alinement with the shaft 2 so as to ofier the least obstruction to the passage of thecoal or .cinders or the like out of the of which arejconnected to-' gether by selvage strips or bands 10 and 11. These strips are shown as made in the form of the strips being 'f ratus embodying my invention cylinder and through the outlet chute 18 and into the receptacle suspended from the hook 17. This hook is shown as riveted orotherwise secured to the rear wall 23 of the easing 6 and provides along. its upper portion the rear bearing 4 of the shaft 2. The front bearing 3 is shown as provided by a V shaped plate 24 riveted or otherwise secured on the front face of the feed chute 7.

The base portion of the apparatus is provided with an opening 19 through which the sifted ma rial falls into the barrel, can or like receiving receptacle 20 positioned beneath. The b vided witha depending flange or rim 21 adapted to fitoverthe receptacle 20. Plates 22 are shown mounted on the under face of the base 25 and diametrically opposite each; other and having depending portions 22 arcuated or. curved to conform to the curve.

ofthe opening 19 and positioned so as to enter within the walls of the receiving receptacle 20. There is further shown ad ase portion is shown as pro.

justing means 26 forshifting or otherwise adjusting the plates 22 on the base 25 to vary the position of the depending portions 22 relative to the walls of the recelving receptacle 20. Thisconstruction permits of the use of receiving receptacles ofdifierent sizes in connection with the sifter since the depending portions 22 serve to hold the'baseportion within certain limits with respect to the opening in the receiving receptacle and thus insures the falling of the sifted material therein.

Throughout the structure of the appathej oints are so'constructed as to insure a dust proof apparatus. The arched casing 6 is provided along its front end with aninc-losing wall 27 which is secured thereto and to which in turn thefrear vertical wall 7 of thejchute and'the inclined base 7* are riveted. Where the chute 7 is joined to the front wall; 27 and the latter in turn is secured to the base portion 25, the joints are so constructed that almost impossible. v 7

It is obvious that various modifications may be made in theconstruction shown and above described within the spirit and scope of myinvention.

I claim:

In a sifter, alcylindrical sieve-comprising lodgment of dust and ashes therein is made a perforated sheet shaped to form ahollow cylinder open at each end, strengthening hoops'secured at each end thereof, a shaft extending through said cylinder, radial strip extending diametrically across the forward end of said cylinder andthen bent and made to lie fiat against the inner and a fiat Y walls of said cylinder and connecting the forward hoop with the shaft and firmly securing them together so that the rotation of the shaft will rotate the cylinder, the portion to provide a seat in which the rotating shaft of said radial strip which extends across is removably secured. 10 said cylinder being turned with its wider In testimony whereof I have aflixed my faces parallel to the longitudinal axis of signature in the presence of two witnesses.

the cylinder so as to provide the least ob- WILLIAM NIGHTHAUSER. struction to the entrance and passage of malVitnesses:

terial rearwardly and through said cylinder, BERNARD CoWEN,

and being further bent at its medial portion HARRY O. LEWIS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner ofjatents, Washington, .D. G. 

